Pectoral fasciitis is mainly due to chronic cumulative strain or acute injury where the fascia is torn or due to injury at the dermal nerve penetration or longitudinal stripping from both sides of the spinous process, but also commonly due to muscle spasm after cold, moisture and rheumatic inflammatory lesions of the myofibrous tissue, which can easily lead to injury at the lumbar, dorsal and thoracic fascia. The clinical manifestations of this area are mainly: pain and numbness of the skin in the affected area, sometimes accompanied by pain and radiating pain in the buttocks, low back and lower limbs. The affected muscles are tense or in spasm, with localized pressure pain, accompanied by limited spinal movement. Local skin pallor may also appear, and patients with long duration of the disease may experience local muscle atrophy, which is the main symptom.